using your jbl 80.4 you would bridge the 2 rear channels and run the speaker wire from the amp to the sub. The whole point of the amp is to power the sub, so only some extra speaker wire will be necessary.
where are you going to tap into the factory wiring? when I hooked up my head unit there where +/- wires for each speaker could I tap into it there? I'd like to do it closer to the door but I need to know how to get to them.
also cthomp: if I can afford it do you think it is worth it go with the vifa tweeter and peerless mids? I got an mtx amp that put out 2x80 @4ohms I hope to use.
